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R600g Driver Patch That Can 4x The Frame-Rate

10-31-2012, 10:00 PM

Phoronix: R600g Driver Patch That Can 4x The Frame-Rate

Following yesterday's article comparing the AMD Radeon Linux drivers on Ubuntu 12.10, Marek Olšák looked into some of the cases where the open-source Radeon Gallium3D driver was much slower than the proprietary Catalyst driver. Already with one patch that touches only two dozen lines of code, Marek was able to quadruple the open-source driver frame-rate for at least one game...

Comment

So... can you rerun all the benchmarks in the previous article with this patch?

Nice idea...

I'm very interested to soon build a machine with mini-ITX MB and a AMD APU and was to use the Catalyst driver....but was a bit worried with AMD "long therm" support as for drivers goes tacking in account what they did recently.

R600g performance simply didn't seem to cut it and difference seemed so high that i was w/o hope that it would improve enough any time....

Comment

Well... I was excited when I read that title. 4x the frame-rate on some of those tests would put them neck-n-neck with catalyst... but then I realized the test he's getting 4x performance on is the game that runs horribly slow on the OSS drivers. According to the Phoronix post, on the 6870 Reaction Quake get's 519 fps with Catalyst and 8 fps with Radeon... even if you quadruple that figure, you're still only getting 32 fps compared to Catalyst's 500+

Don't get me wrong, it sounds like a very promising patch, congrats and thank you to the developer... I hope it's just that game, but I'm not going to hold my breath until I see more benchmarks.